Add git-cliff configuration

Author: alerque

cliff.toml

@@ -0,0 +1,39 @@
+[changelog]
+header = """
+# Changelog
+
+All notable changes to this project will be documented in this file. See [conventional commits](https://www.conventionalcommits.org) for commit guidelines.\n
+"""
+body = """
+{% if version %}\
+    ## [{{ version }}](https://github.com/alerque/fluent-lua/releases/{{ version }}) — {{ timestamp | date(format="%Y-%m-%d") }}
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group }}
+    {% for commit in commits %}
+        - {% if commit.breaking %}[**breaking**] {% endif %}{{ commit.message | upper_first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+footer = """
+<!-- generated by git-cliff -->
+"""
+
+[git]
+commit_parsers = [
+    { message = "^feat:", group = "Features" },
+    { message = "^fix:", group = "Bug Fixes" },
+    { message = "^docs:", skip = true },
+    { message = "^perf:", group = "Optimizations" },
+    { message = "^refactor:", skip = true },
+    { message = "^style:", skip = true},
+    { message = "^test:", skip = true},
+    { message = "^ci:", skip = true },
+    { message = "^chore:", skip = true },
+    { body = ".*security", group = "Security" },
+]
+filter_commits = true
+tag_pattern = "v[0-9]*.[0-9]*.[0-9]*"
+skip_tags = "v0.0.[0-5]"